apache-commons-httpclient

问题 I am using apache HTTP Client for callin rest endpoints. I want to call a POST request with image and some more form data as parameters. I can do them separately with to requests like first for the form data and the other for the image alone. Is there any possible solution so that i can do it with one request. Below is the api call http://<url>?hint=hi&def=ready&image=<imagefile> 回答1: Use Multipart Request. Commons Apache File Upload API has very good API for the same. Apache Commons

问题 Is it possible to load login page once, using HttpClient, and get image file of img element from cache, not from src link, without reload? It is important because I need to save captcha for just loaded page, if I try load it from src link, it will be another captcha. I tried: DefaultHttpClient httpclient = new DefaultHttpClient(); HttpGet httpget = new HttpGet("http://www.mysite/login.jsp"); HttpResponse response = httpclient.execute(httpget); HttpEntity entity = response.getEntity();

问题 I've managed to make changes to everything but the following: HttpClient client; HttpPost method; client = new DefaultHttpClient(); method = new HttpPost(url); InputStream rstream; try { rstream = method.getResponseBodyAsStream(); } catch (IOException e) { return BadSpot(e.getMessage()); } What I'm not sure of is what I should replace getResponseBodyAsStream() with. 回答1: InputStream rstream; try { HttpResponse response = client.execute(HttpHost, method); rstream = response.getEntity()

问题 I am getting a "multipart/mixed" response to an http request that I need to parse. One part of the response is a pdf file which I need to save to disk. Is there any library that will do this for me? 回答1: Here is what I did in groovy. Needed java mail library: //... get reader from response, can use response.success callback in http.request ByteArrayDataSource ds = new ByteArrayDataSource(new ReaderInputStream(reader), "multipart/mixed"); MimeMultipart multipart = new MimeMultipart(ds);

问题 We have a restful API (which we cannot change) where if the Content-Type value for a part is null, we have a specific processing. Until httpclient3.x, we could do a the following and set the content type as null. StringPart sp = new StringPart("name, "value") sp.setContentType(null); Now, we have moved to http components (httpclient4.x jar) and I realised that we need to pass an instance of ContentBody (StringBody to be precise). Found the following 2 ways of doing the same in the new version

问题 I am writing some code to send a log file via http to a server if a JAWS app fails. To test this I have setup a servlet that receives and processes the request. My Client code is as from the Apache HttpClient 4.2 examples { HttpClient httpclient = new DefaultHttpClient(); try { HttpPost httppost = new HttpPost("http://localhost:8080/testServer/testserv/a"); FileBody bin = new FileBody(new File("XXXs")); StringBody comment = new StringBody("A binary file of some kind"); MultipartEntity

问题 I have been trying to handle a redirect (302) in java code and I am finally been able to do it. But I am running into a problem. Which is, once the redirect opens a page, clicking any link on the page sends me back to the login page. So I have to write my own redirect implementation: private HttpMethod loadHttp302Request(HttpMethod method, HttpClient client, int status, String urlString) throws HttpException, IOException { if (status != 302) return null; String[] url = urlString.split("/");

问题 I am creating a module that uses http://hc.apache.org/httpcomponents-client-4.2.x/index.html to make HTTP requests to external services. This module is going to be used by application. The application configures different aspect of the module by XML based config file. and I want to specify the logging level to be used for http communication in that XML file. The module will read that config file, and configure apache HTTP client with that logging level. I could not find any way how

问题 The code works fine if the query does not contain any utf-8 chars. As soon as there is one utf-8 char then ETools provides results I do not expect. For example for "trees" I get correct result and for "bäume" (german word for trees) I get strange results. It looks like that ETools receives the query as "b%C3%A4ume" and looks for exact that query with exact those chars and not for "bäume" . I think the problem may be solved if I set some header parameters but I dont know what parameters are

问题 I am using the Apache Commons HttpClient along with Restlet to call a restful web service. Unfortunately, my server (based on Ruby on Rails) does not like the Transfer-Encoding: chunked that HttpClient is using by default. Is there any way to disable the usage of chunked encoding for POSTs from the client? 回答1: As said in Restlet mailing list, in Restlet version 2.1, you can set ClientResource#entityBuffering property to true to cache content in memory and prevent chunked encoding. 回答2: As a